She take the little change she make
To fix her nail cuticles, lipstick is suitable
To make you fiend for more

from Kendrick Lamar – Keisha's Song (Her Pain) Lyrics on Rap Genius

As a prostitute, she may have some sores from her past. However she gets a manicure and lipstick to fix her appearance for customers.

It represents the deadly cycle of prostitution, she takes the little money she makes only to spend it all on fixing her appearance to make her customers want more

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